Area Code 248-404 located in TROY, OAKLAND, MI, more detail is as below. Place NPA (Numbering Plan Area) : 248 NXX (Local Number Prefix) : 404 City : TROY County : OAKLAND State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 26125 LATA (Local Access Transport Area) : 340 Rate Center : TROY ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 48083 Other Information NPANXX : 248404 County Population : 0 Switch CLLI (Common Language Location Identifier) : TROYMISMDS0 MSA CBSA (Core Based Statistical Area) : Detroit-Warren-Livonia, MI MSA CBSA Code (Core Based Statistical Area) : 19820 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : TROY Latitude : 42.5480 Longitude : -83.1858 ‹ previous : 248-404 next › : 248-405 Telephone Number List 248-404-0000 ~ 248-404-9999